Crank case and oil pump heater



July 28, 1931. E. SOBOLIK CRANK CASE AND OIL PUMP HEATER Filed March 28, l930' Inventor mmmzzsazazzzz flzmaolizm A llomcy Patented July 28, 1931 UNITED STATES EDWARD L. SOBOLIK, OF DAVID CITY, NEBRASKA.

CRANK CASE AND OIL PUMP HEATER Application filed March 28, 1930. Serial No.-439,711.

This invention relates to a heater for heating crank cases and the oil pump arranged within the crank case. I

The primary object of this invention is to provide an electrical heating unit adapted to be arranged within the bottom of the crank case at the lower end of the oil pump within the crank case to prevent freezing of the oil within the crank case and further to provide a heating unit of this character which may be so operatively connected with the screen of the oil pump as to prevent accumulation of ice on the oil pump screen in order to maintain at all times perfect a 16 lubrication especially while the motor is cold.

Other objects and advantages of the invention will become apparent during a study of the following description taken in connection with the accompanying drawings:

Figure 1 is a fragmentary detail sectional view taken through a crank case showing in elevation the oil pump arranged therein for clearly illustrating the application of my 3' invention thereto,

Figure 2 is a bottom plan view of the oil pump showing the application of my invention thereto,

Figure 3 is a diagrammatic view illustrative of the wiring system.

With reference more in detail to the drawings, it will be seen that the reference character 5 designates the block of an internal combustion engine and the reference character 6 the crank case of the engine. The oil pump which depends from the cylinder block 5 into the crank case may be of conventional construction and is designated generally by the reference character P.

The oil pump screen on the lower end of the pump and in parallelism to the bottom of the crank case 6 is designated by the reference character 7 and in this instance, it is seen that the screen is substantially circular.

The invention per se consists of a tubular casing 8 formed of copper, brass, or, and preferably, aluminum. In forming the tubing 8 it will be noted that the tubing is 50 suitably formed intermediate its ends to protubular casing is a suitable heating wire 12 which is preferably in the nature of nichrome wire, and the circular part 8 of the casing is placed against the bottom face of the circular screen 7 and supported there-- on through the bottom of a cross rod 13 extending transversely of the screen and screwed or otherwise secured to the screen adjacent the edge of the screen as at 14.

Through one of the branches 10 is passed a suitable wire 16 which at its inner end is suitably connected to one end ofthe heating wire 12 and at its opposite end terminates .in a contact forming part of a suitable switch S, which switch S may be arranged I within convenient reach of the operator.

. The wire 16 passing through the switch S to the ammeter designated by the reference character in Figure 3 arranged in the circuit leading from the source of'electrical energy, preferably a battery, designated by .the reference character B. A second wire 17 is connected at one end to the other end of the heating wire 12 and this wire extends through the other of the extensions 10 to a suitable ground 18.

Preferably, in securing the ends of the heating Wire 12 to the said ends of the wires 16 and .17 the said ends are preferably twisted together instead of'soldering. Of course, the wires are suitably insulated from the tubing by encasing all of the bare wires in a suitable asbestos stocking as clearlysuggested in Figure 1.

From the foregoing then it will be seen that the circuit to my improved heating unit may be readily and manually. controlled may beplaced' on the dashboard, steering gear or anyother part of the vehicle-within through the medium of the switch S which convenient reach of the operator and that a heater of this character will maintain a desired temperature within the crank case and especially about the screen of the oil pump within the crank case thus preventing freezing of the lubricant within the crank case and on the screen 7 so that perfect lubrication of the internal combustion engine may be had at all times even during cold and inclement weather and which will further prevent freezing of the oil pump.

It is thought that from the foregoing description taken in connection with the accompanying drawings a clear understanding of the operation, utility and advantages of an invention of this character will be had by those skilled in this artwithout a more detailed description.

Even though I have herein shown and described the preferred embodiment of my invention, it is to be understood that the sameis susceptible tochanges fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having thus described my invention, what I claimas new is:

1. In an electrical heater of the class described, a tubular casing having a circular part adapted for disposition in the crank case of an internal combustion engine be tween the bottom of the crank case and the screen of the oil pump within the crank case, angularly disposed branches extending fromtheends of the circular part upwardly through the cylinder block of the internal combustion engine, an electrical heating wire arranged within the circular part of said tubular casing, said heating wire being arranged in an electrical circuit, the wires of which, extend through said branches, said circuit wir'esand said electrical heating wire being suitably insulated from the branches and easing respectively, and a switch arranged in said circuit for controlling the heating unit.

2. In an electrical heater of the class described, a tubular casing having a circular partv adapted for disposition in the crank case of an internal combustion engine between the bottom of the crank case and the screen of the oil pump Within the crank case, angularly disposed branches extending from the ends of the circular part upwardly through the cylinder block of the internal combustion engine, an electrical heating Wire arranged within the circular part of said tubular casing, said heating wire being arranged in an electrical circuit, the wires of which extend through said branches, said circuit wires and said electrical heating wire being suitably insulated from the branches and easing respectively, and a member extending transversely of said screen and the circular part of said casing, said member EDWARD L. SOBOLIK. 

